機器
background
bags
bottles
can
control
control screen
controls
discard
disposal
earth
ecology
environment
factory
foreman
garbage
glass
industry
landfill
management
material
metal
paper
pet bottle
pile
plants
plastic
plastic bottles
plastic for oil
plastic waste
pollution
procedure
production
protection
recyclable
recycle
recycling
recycling plant
reuse
separation
steel
trash
waste
waste disposal
waste recycling
wastewater
worker